trotter 0.8.5

Class definitions for pseudo-lists that simplify working with structures commonly encountered in combinatorics such as permutations, combinations and subsets.

Changelog

0.5.0

First Dart release: support for classes:

• Permutations
• Combinations
• Amalgams (permutations with replacement during arranging)
• Selections (combinations with replacement during arranging)
• Subsets

0.5.1

Improved the documentation; minor bug fixes.

0.8.0

• Added inverses to all the functions so that we can look up arrangements non iteratively (now possible to look up values in arbitrarily large pseudo-lists; this library was incomplete without this functionality!).
• Made the code more readable. Made a few minor tweaks to the existing code.

0.8.1

• Added the Compounds class (permutations of unspecified size).
• Added the contains method for all classes.
• Corrected indexOf behaviour for when arrangements that don't exist are passed as arguments; returns -1 if the arrangement is not in the pseudo-list.

0.8.5

• Cleaned up the code so that the library may be used in strong mode.
• Added subset of the functionality associated with Iterables (first, last, any, every, forEach etc.). Some functionality that would be redundant (e.g. isEmpty) or less meaningful/useful (e.g. fold) neglected. Since structures we can represent can "contain" a huge number of arrangements, we need to be careful about using methods that iterate over the structures (like any, every, forEach).